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h o m e

Gamma Cas Star and Sharpless 2-185 Nebula (IC59 and IC63)

The OIII filter didn't pick up any nebulosity. These are the result of different processing attempts with only SII and Ha data present. The OIII data was mapped to the blue channel, but the result was a neon green nebula. So I got creative and arrived at these two results.Why no OIII data? Because the nebula isn't actually an emission nebula. The ionization from the star is reflecting on the nebula and thus revealing it.

Telescope
Focal Length/Ratio
Mount
Camera
Filters
Exposure
Binning
Focuser
Location
Date
Processing
AP160 + AP field flattener
1232mm   F/7.7
Takahashi NJP Temma 2
Apogee Alta U16M
Astrodon 5nm Ha/SII/OIII
240 minutes - SII:Ha:OIII [100:70:70]
1x1
Robo-Focus
Eldorado, TX; Crowell, TX; Frisco, TX
Oct/Nov, 2009
- captured with Maxim DL v4
- aligned and stacked in Maxim DL v4
- combined and adjusted in PhotoShop CS3

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